Hinge



Nov. 25, 1930.`

RAYMOND' HINGE lFiled May 5. 1928 butt. y

` 50 of knuckles 10, 10, and the leaf B has knuckles l Patented p Nov. Y25,

OF NEW BRITAIN, CONNECTICUT;

,PATE

A CORPORATION or CONNEC'IfICI'I.`

HINGE` 'l YAppleman filed May 5,

The present invention relates to a hinge or butt of the type having a pairof leaves with interitting knuckles and alooseor re` l'novable pin extending through the knuckles for pivotally connecting the leaves together.

"j lt has been found, in hinges of this sort, that `there is a tendencyV for the pin to creep Or work upwardly, and various expedients have been proposed to guard against such creep- "fo ing tendency and accidental displacement of "the pin, but so far as I am aware, these various proposed expediente have either been not entirely practical and successful, or they have materially added to the cost of the hinge.

The aim Of the present invention is to pro-. vide, in a hinge of this sort, an improved and simple arrangement for holding thepin in `properposition within the knuckles. AMy

i Z0 improved arrangement is extremely simple,

the means for preventing the pin from creep.- "ing upwardly adds practically nothing lto the cost of the hinge, and the arrangement, is entirely effective' and successful inoperation.

Other Objects will be in part obvious and in part pointed out morein detailhereinafter.

The invention accordingly consists in the featuresof coi'istruction, combination of elements and arrangement of parts which will V be exemplified in the constructionhereinafter set forth, and the scope of the application of which will be` indicated in the appended claims. i

In the accompanying drawings, wherein I have shown, for illustrative purposes, one

of the embodiments which the present invention may take:

Figure l is a front view of the butt with portions of some of the knuckles broken away 10 furthe purposev of illustration;

Fig. `2 is an enlarged detail view of the lower end of thepin `located within the knuckles, the latter being shown in, section; and

Fig. 3 shows the blank from which the leaf B is formed.

Referring tO the drawings in detai-, A and B, respectively, designate the leaves of the The leaf A has between its ends a pair |1928. *serial N. 275,376. i

NT OFFICE,` N

j. HORACE n. RAYMOND, or BERLINCONNECTICT, AssIGNORfrOTHEsrANLErWOnKs. i

`lljbetween which the `knuckles lOareintenn i posed. VThe letter Cu designates vthe pin or pintle for connecting the leaves .togethcn,` This pin has, as is usual in hinges of thisV sort, an integral ball tip l2 andashoulder y lf3 adapted to engage on-and be flush with the upperiend of theupperlnost knucklell. g

`Vlllepintle is adapted to extend down into the bore of the lowermost knuckle ll. Drivm eninto the lower-end of this knuckle 1s a'ball tip 14 so as togive` the l necessary iniufihed,

appearance. .l 1 I `In accordance with the `presentinvention, and for thepurpose of preventing the pin fromrising or creeping,upwardly,the pinis `1 provided with relatively line circumferential corrugations and a suitable `number of bores of knuckles are provided withcomplementary ,corrugations tive disclosure, the lowermost knuckle lland the lowermost knuckle 10 are shown as ha`ving their bores `provided with circumfereib `.tially extending Lcorrugations` and that por-p. tion of .the ,pinfwhicli engages @inT these knuckles is shown as having circumferential corrugations complementary to the corrugations of the knuckles. Obviously, the length ofthefcorrugated portion of the pin' and the number fof 'kinuckles` which aregcorrugated -may be varied tosuit,requirements. By corfrugating thepin", the same is provided with a `plurality of circumferentialribs 2() between which are circumferential Or annular grooves 217. The lgrooves formed byrorrugatingthe numeral 22, and the ribs by the numeral 23.

In the present illustra bores of Vthe knuckles are designatedby the 'gible cost. Each of the leaves is formed by stamping out from a sheetof metal a blank having a body portionand tabs adapted `Ito form the knuckles. `Figure `3 shows a blank from which `the leaf B is formed. The corrugations `are formed inthe lowermost knuckle` `11 by rolling or stamping such corrugations therein before the tab is curledintoknuckle form.. .The corrugations in the knuckle `10` are formed in like manner.

j The parts `may be assembled by bringing the kie@ knuckles into alignment and then slipping the complementary to said ribs, the smallest inpin d m'nwardly into place. The diameterof ternal diameter of said lowermost knuckles the hinge pin, t-he diameter of the bore of the being greater than the diameter of said cirknuckles, and the size of the corrugations are cumferential ribs on said pin. so proportioned that the pin may be inserted HRACE H. RAYMOND. 70 or withdrawn easily with the lingers. Vhen mounted on a door, however, there is a horizontal component of force tending to pull the leaves apart due to the weight of the door. rllhis displaces the knuckles slightly from their true alignment so that the corrugations on the pin are brought into engagement with the corrugations in the bores of the knuckles, locking the two together and preventing the pin from w' creeping upwardly. Thus, the pin is nona0 rising, and the shoulder 13 is always maintained in engagement with the upper end of the knuckle ll. Practical experience has proved that, by corrugating the pin and one Y or more of the knuckles, as described, the pin 35 is positively and effectively prevented from creeping, and this result is obtained in an eX- tremely simple manner and at practically negligible cost. As many changes could be made in the 90 above construction and many apparently widely different embodiments of the invention could be made without departing from the scope thereof, it is intended that allmatter contained in the above description, or shown in 95 the accompanying drawing, shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the language used in the following claims is intended'to 10o cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall 10 therebetween.

I claim as my invention: l. A hinge having a pair of leaves with in teriitting knuckles, a removable pin engaging in said knuckles, and complementary corrugations on the pin and a knuckle, the greatest diameter of the corrugations of said pin being less than the smallest internal diameter of the complementary corrugations on said knuckle. 2. A hinge having a` pair of leaves provided with aligned knuckles, and a removable pin engaging in said knuckles, said pin having a plurality of circumferential grooves, one, at least, of' said knuckles having a bore provided with a plurality of circuniferential ribs adapt ed to engage in said grooves, said pin between said circumferential grooves being of a smaller diameter than the internal diameter of said ribs whereby said pin may be removed longi- 60' tudinally. 125

3. A hinge having a pair of leaves with in teriitting knuckles, and al removable pin engaging in said knuckles and having a plurality of circumferential ribs, the lowerinost of 65 said knucklesihaving circumferential grooves 130 

